So yeah, this is Tigrinya also spelled Tigrigna, a national language of Eritrea and Ethiopia — in fact tragically earlier this decade Ethiopia carried out genocidal actions against Tigrayans in the northern border region near Eritrea.
The Tigrinya language is like its Ethio-Semitic relative Amharic, with which it is often confused, a beautiful and overlooked language of a storied region of the world, so I think it is a really damn big shame that your first exposure to this language is Nazis trying to evade social media content filters. In fact I'm sure that's one part of why these Nazis do it, that if you come to associate the Abugida with Nazis you'll start to feel uncomfortable seeing that script in general, even when it is perfectly innocuous.
Now if you want to listen to Tigrinya music — which I would definitely recommend, especially if you commute by train — the magic word is {ትግርኛ|tgrnya} {ሙዚቃ|muziqa}. The top result on YouTube is this bop.